Mã sản phẩm: SRM# 191d
Trạng thái: Hàng Order
Xuất xứ: NIST, USA
Availability: Available for Purchase
Unit of Issue: 1 bottle x 25 g;1 bottle x 30 g
Unit Description: A unit of SRM 191d consists of 25 g of sodium bicarbonate (191d I) and 30 g of sodium carbonate (191d II), each contained in its respective clear glass bottle.
Product Expiration Date: 30 November 2032
Certificate/Report
Revision History:
05 February 2025 (Editorial changes; updated format).
Certificates of previous issues of this material are available here.
NIST Storage Temperature: Ambient
Please see certificate for user storage information regarding this material.
Safety Information
Table(s) of Related Materials pH Calibration
This Standard Reference Material (SRM®) is intended for use in preparing solutions for calibrating electrodes for pH measuring systems
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